Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Marci J Neilson, MD

Individual provider Internal Medicine Physician · NPI 1164652939

Marci J Neilson, MD is an Internal Medicine in Rapid City, South Dakota. Qualified in 2009, 17 years ago. Practices with Monument Health Rapid City Hospital Inc, a 561-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
17
Licensed in
SD
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

640 Flormann St
Rapid City, SD 57701-4679
Phone: (605) 718-3300
Fax: (605) 718-3426
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 8554 (SD)

Record details

NPI number1164652939
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 15, 2009
Last updated in NPPESJanuary 24, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Monument Health Rapid City Hospital Inc — 561 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Rapid City